davis



(No. Model.) 4 Sheefis-Sheet L G. P. DAVIS. TYPE WRITING MACHINE.

No. 509,427. Patented Nov. 28, 1893.

li eam (No Model.)

4 Sheets-Sheet 2 G. P. DAVIS.

TYPE WRITING MACHINE- N0. 509,427. Patented-Nov. 28, 1893.

(No Model.) 4 S heets-Sheet -3.

' 0. P. DAVIS.

TYPE WRITING MACHINE.

No. 509,427. Patented Nov. 218, 1893.

(No Model.) 4 Sheets-Sheet 4.

' I G. P. DAVIS.

v TYPE WRITING MACHINE. No. 5093127. Patented Nov. 28,1893.

M I\ a 2 J \QN 1* Q Wm [M Mkw "M9 Fi es.

. (monies P. iAvrs, or BUFFALO, NEW roan.

TYPEFWBLTJNGWMAQ s ns...

BPECIFIGATTQN-forming part of Letters Patent No. 509,427, datedNovernner 28, 1898.

Applicationflletl August 31. 89.1- Serial No.404. 1"78. (No model.) '7

To all whom it mag concern:

Bait known that .I, GEORGE P. DAVIS, of Bufialo, in the county of Erie and State of New York, have invented a new and useful Improvement in Typewriters, of which the following is a specification.

My invention relates to type-writers, and, my improvements consist in adapting a typewriter to be folded, and in the various details of construction hereinafter described and shown in the accompanying drawings in' .whicht Figure 1, is a planviewof a type-writer one; bodying my invention, in position to hens Fig. 2, is an elevation of the same showing the sidelwhieh is t ward the ene t eehj t in...

Fig. 1. Fig. 3, is an end elevation'of the saine showing that end which is toward the left in Fig. 2. Fig. 4., is a section on the line Z, Z, Fig. 1.- Fig.'5, is a section on-the lineY, Y, ig. .1. Fig. 6,is'a plan View, showing the in terior construction. of that portionof the do; vice within the lines X, X, X, Fig. 1. Fig.7, is a section-on the line W. W, Fig. 1. Figs. Sand 10, are plan views showing the interiors of the larger parts ofthe-device. Fig.9, is an elevation of the part shown in Fig. 8,-show' ing that side which is toward the bottom of v the sheet in Fig. 8. Fig. 11, is an end'eleva-. tion of the device'shown in Fig. 1, folded together. Fig. 12, is an'isometric, view of that portion of the device, by which the required type is brooghtintoposition for writing. Fig. 13, is a detail'isometric view showing a modified form of the apparatus by which the required type is brought accurately into -position for writing. Fig. 14, is a detail perspective View of a modified form of the feeding. apparatus. 1 Fig. 15, is a detail perspective view showinga modified attachment by which the plate 3, maybe secured. to the plate 11. Fig. 16, is a section 01f the line V, V, Fig. 15. Fig. 17, is a cross-seetionshowinga second modified attachment by which the plate 3, may be secured to the plate 11 and Fig. 18, is an elevation in section showing a modified form of the device, by which modification the parts are adapted to be folded together by sliding the plates 2, and 3, within the plate 1, 5c and Fig. 19 is an enlargement of Fig. 18.

The same reference figures referto the same parts throughontthe several views.

all)... s a sl t termed ,t

6, next tothe side flange 6.

1, 2, 3, are plates, or trays, adapted to be placed one within the other, and connected as hereinafter described. The plate 1, has its edges turned up to form the flanges 4, 4, 4, 4, and is hinged at 13, so as to turn over upon, and form a cover for the other parts, 7 as shown in Fig. 11. The. plate 2, has its edges at itsends and one of its sides turned up to form the flanges 5, 5, 5. The plate 3, has its four edges turned up to form the flanges 6, 6,5,7.

8, 8, are vertical slots in the end flanges 6,

' 6 9, 9, are vertical slots in the 5 flange 7 next to the end flanges 6, 6.

p 4 rough thehottoin of the plate 3, parallel with and a short distance from the side flange 6. The ends of theslot 10, extend about half-way up'theend flanges 6, 6. 11,is a thin metal plate, of the same length as plates 1, 2, 3 bent at the top over and down upon the inner side of the side flange 6. The plate 11, is bent at. the bottom under the plate 7: 3, then up vertically through the slot 10. Ratchetteeth are formed at. the edge of the plate 11, which extends through the slot 10, thu'sforming, of said edge, arack indicated in the drawings by the reference figure 12. The end flanges5, 5, of the plate 2, are pivoted at 27 to the plate 3, the endsof said flanges at the nnfianged side of the plate 2 passing intothe slots 9, 9, as best'shown in Fig. 2. The flanges of the plate 2, pass inside of the flanges of the plate 3.

By the above described construction the side of the plate 2, which is toward the plate 1, has a free movement up and down with reference to the plate 3, and the plates 2 and 3, are adapted to move with reference to the plates 1, and 11, in the direction of the length of'said last mentioned plates, the vertically extending edges of the plate 11, passing through the slots 8, 8, and 10, in the end 9 5 flanges 6, 6.

14, is an aperture through the plate 3, mid way between the ends of said plate.

28,28, are inking pads secured to the inside of the plate 3, at either side of the apertnre 14, and parallel to the flange 7.

30 are holes formed through the plate 2, parallel with and nearer to the hinged side of said plate. Characters are printed on plate from the ends of the arms 32, 32.

from the lower suredges of plate 2 at which there is no flange,

' and pass under said plate.

' that said spring \Vhenthe plate 2, is secured to the plate 3, the hangers are inside of the flanges 6, G, and 7, which will prevent the removal of plate 31.

36, is a metal plate, forming a handle, which is hinged at the edge of plate 31, opposite to the arms 32, 32.

37, is a spring secured to the plate 31, near that edge to which the plate 36 is'hinged and extending across the plate, 31.

38 is a detent secured to the free end 01": the spring 37, and extending beyond said spring. The free end of detcnt- 38 is bent downward and is pointed so as to extend into the holes 30, as shown in Figs. 1 and 7. By moving plate 31 so that detent 38 mayientcr any one hole in plate 2, a similar character to that set opposite said hole will be directly over the aperture l-l, through which aperture all im-' pressions are made.

39, is a hanger secured to the lower side of plate 2, and extending downward.

10, is a lever pivoted near its center at 41 to a hanger 3.), so as to oscillate in a vertical plane at rightanglcs to the length of plates 2, and 3. ()nc arm, 43, of the lever 4.0 cxtends over the rack 12. The othercnd of said lever extends over the type-strap 34, and is provided with a downwardly extending head 42, adapted to press the letter on type-strap 34 through the aperture 1+, when that end of the lever is forced downward.

1b, is a standard secured to and projecting upward from plate 3, and 15, is a rod passing through standard i i, and extending through the end llango b. Said rod'is adapted to reciprocatc in a direction parallel to the rack 12, and to rock in a vertical plane at rightangles to said rack. l

17 is a collar upon rod 15 adapted to limit the motion of said rod parallel to the rack 12, by striking against the standard i 18 is a coiled spring upon the rod 13, coinpressed between the end-ilangc 3, and collar 17, and secured to rod ldal. collar 17, so that it cannot turn around said rod. 'lhcrc is a torsional strain to spring 15 which presses the end ll), of said spring against the plate :5, so

tends to turn said rod toward the rack 12.

hangers 33, 33, (as shown in Fig.-

20 is an arm extending at right-angles from rod 15 over the rack 12, and forming a pallet which engages with the teeth of said rack.

22, and 23, are armsextending from the pallet 20, at right-angles to-said pallet, and at an angle with each other.

21, is a lever secured to the rod 15 outside of the end flange 6, and extending at rightangles to said rod.

26 is a hanger which is secured to the under side of plate 2 and extends downward,

and 24 is a dog pivoted to hanger 26 at 25.

Said dog is so located and pivoted to hanger 26 that its free end shall come in contact Willi arms 22 and 23 its lower edge resting upon plate 3, at the same time, and so that said dog shall be adapted to oscillate in a vertical plane parallel to the rod 15. The length of the dog 24 and its location relative to the arms 22, and 23, is such that when said dog rests against the end of one of said arms its length extends in a direction which forms an angle less than a right-angle with the planes of the plates 2 and 3, and the plate 2, is supported by said dog. The size and form of the lower or free endof the dog 24 are such that before the plate 2 is pressed down against the resistance of said dog the upper corner of the free end of said dog extends a short distance under and touches the arm 22, and tho-lowcricorncr comcsagainst the plate 3, at a point which is in a vertical line nearer to the pivot 25, than the vertical line through said upper corner.

29, 2!),are strips of rubber secured to the outside of the plate 1.

The operation of the above described device is as follows': The type-writer is laid upon the paper, placed flatupon a level sur- 1 face, in the position shown in Fig. 1. The pallet 20 raised out of engagement with the teeth of the rack 12, by pressing down upon the lever 21, and the plates 2,and 3, are moved to the left until the pallet 20 is atthe left hand'cnd of the rack 12. The left hand of the operator is laid upon the plate 1, holding said plate stationary because of the cohesion of the rubbefstrips 2.), 2!), with the surface upon which the device is placed. The handle 36 is grasped by the right hand of the operator, with the fingers upon the plate 31, and spring 37. The plate 31 is moved until the'cnd oi the dctcnt 38 enters that one of the holes 50 against which is marked the character which the operator desires to write. The plate 2, is forced down by the righthand of the operator. As said plate dosccinls'thc pivot 4 lot the lever =10 is forced down and, the end -13 of said lover bcinghcld stationary by the rack 12, the head 42 ol'said lever is pressed down against the type-strap 3-1, thus forcing the required typo through the aperture 14-, andinlprossingmho required character upon the paper beneath said aperture. As the plate 2, descends the free end of the dog 21 is forced in aparallol direction to the rod 1 forcing its end under and IOC against the arm-22 thus raising the pallet 20 out of engagement with the teeth of the rack 12, and forcingthe rod along against the resistance of the spring 18. The lower corner of the dog 24 coming against the arm 23 forces arm 22 oil? from the upper corner of dog'2 i, allowing the pallet to fall into engagement with the teeth in rack12. By this operation the spring 18 has been compressed and the rod 15 has been forceda short distance.

dog 24 is pressed backward by the arm 23 thus raising plate 2, and bringing said dog into position to repeat the above described operation. The distance between the teeth of the rack12, and consequently the distance the pi'ates 2 and 3 move after eachcharacter is written, is equal tothe space the letters are to be placed apart. The space between words isformed by pressing the plate 2, downward when the detent 38 is at a position where no type is over the aperture 14. Each time, the

plate 2 is forceddown all the type except that over the aperture 14, are pressed against the pads 28, 28, and reinked. I 1

When the above described device is to be folded to put away or to carry in the pocket, the dog 24 is laid on top of the arm 22 and the plate 2 pressed toward the plate 3. The

plate 1 is then turned over at its hinges upon the plates 2-and 3 formingacover as shown in Fig. 11.

Instead of the holes 30 and detent 38 the device shown in Fig. 13 may be used to assist the operator to adjust the type accurately in position to impress a required character. In said figure 44, is a serrated flange to be. at tasked with its teeth downward to the ends of the arms 32, 32, said arms being made somewhat longer to receive said flange. 45, is a double inclined plane provided with the thin transverse plate 46 at its center. The double inclined plane 45 is secured to the plate 3, at the inside of, and near the center of said plate,land extends in a direction parallel to the sides of said plate. When the plate 2, is forced downward carrying the plate 31 with it, the plate 46 acts upon the sides of the teeth of the flange 44, to adjust the plate 31 accurately to the position for writing the required character; the plate 46 acts as described to adjust the plate 31 in the direction of the length of the plate 3, and the double inclined plane 45 acts upon the flange 44 to adjust said plate 31 in the direction of the width of the plate 3. "When the plate 2, is in its highest position the flange 44, is entirely above the inclined planes 45 and plate 46, an the plate 31 is therefore free to be adj ted, by the hand of the operator into the 7:.

approximate position to write a required character, 1 Various feed devices may be substituted for that above described as, for instance, that shown in Fig. 14, in which 47 48 is a double 7i;

crank-lever pivoted in a bearing'upon a standaid 49. .50 is a pawl pivoted to the crank 48, and 51 is a tension-springadapted to draw said pawl backward, -The standard 49 is to be secured to the plate 3, so that the cranks 8L 47 48,'shall turn in; planes parallel to the rack 12, and so that the pawl 50 shall=engage with the teeth of said rack. The plate 2, in descending will press upon the crank t7 thus turning itand turning the crank' 43, thus causing the p'awhO to engage the next tooth of the rack-12.;,.When the plate 2 is allowed "to rise the-spring 51 will draw the plate 3 along in away entirely analogous to that above described.

' Figs. 15, 16, and 17, of the attachment by. which the plate 11, may be secured to the plate These are so strictly analogous to that above described,

that no separate description beyond that fnr- 5 nished by said figures will be required, further than to note that in. the form shown in Fig. 17, the pallet which engages with the rack 12 extends through a slot 10 formed through the plate 3 for this purpose. v

.1 Fig. 18, shows a modified form of the above.

described apparatus, by which modification the device is adapted to be folded by sliding the plates 2, 3, and 11, sidewise into the plate 1, which last mentioned plate is formed for tog:

this purpose in the approximate form of a rectangular box with one of its sides removed.

The plate 11, is adapted to slide in the plate 1, but is prevented from being removed therefrom by lugs 52, 52, formed at the edges of 1 1 the top and bottom of the plate 1, which are adjacent to the open side of said plate, In other respects this form of thedevice isconstructed like that above described.

Havingfully described my invention, what 1 15 I claim, and desire to secure by Letters Patout is-- 1 l: The combination of the plates 1, 2, 3, the plates 2 and 3 being secured to and adapted 3, substantially as sh JWI'l and described.

2. The combination of the plates 1, 2, and 3, the plates .2, and 3, being secured to and :25

adapted to slide longitudinally with reference to the plate 1, and plate 1, being hinged to and adapted to fold over the plates 2 and 3 substantially as shown and described.

3. The combination of the plates 2 and 3, 13 andll, and means for holding the plate 11', stationary, the plate 3, being provided with a slot or groove 10, the plate 11 being turned over the edge of .the plate 3, one edge of the go show modified forms ciprocate in the direction of the length of said plate 11 being turned up into the slot or groove 10, and provided with teeth to form the rack 12, substantially as shown and for the purpose described.

4. The combination of the plate 3, provided with an aperture 14, a plate 2, adapted to reciprocate in avertical direction over the plate 3, a plate 31, upon the outside of the plate 2, arms 32 extending from the plate 31 around the edge of and under the plate 2 the flexible type-strap 34: extending between the arms 32 and provided with type 35, and means for pressing the type through the aperture 14, by depressing the plate 2, substantially as shown and described.

5. The combination of a plate 3 provided with an aperture lei, a plate 2, adapted to reciprocatein a vertical direction over the plate 3, a plate 31 upon the outside of the plate 2, arms 32 extending from the plaie'3l under the plate 2, the flexible strap 34 extending between the arms 32 and provided with type 35, the lever 40 pivoted to the plate 2, and having one arm extending over the strip 34 and the aperture '14, and having the other arm restrained from downward motion substantially as shown and described. I

6. The combination of the plate 11 means for holding said plate stationary, the plates 2 and 3, secured to and adapted to slide in the direction of the length of the plate 11, the plate 2 b ing adapted to reciprocate in vertical direction with reference, to the plate 3, a rack 12 upon the plate 11, and a pallet upon the plate 3, adapted to engage with the teeth of the rack 12, and to feed the plates 2 and 3 along when operated by the motion of the plate 2, substantially as shown and described.

7. A feeding device for typewriters consisting of the rack 12 the rod 15, adapted to rerack, and provided with a pallet for engaging the teeth of said rack, a spring 18 adaptedto return the rod 15 to place and a dog 24 having its free end bearing against the rod 15 and resting upon a surface parallel to said rod, extending at an angle with said surface and pivoted to a part of the device which reciproeates in a direction approximately at right angles to said rack, substantially as and for the purpose described.

8. The combination of the rack 12, the rod 15, adapted to reciprocate in the direction of the length of said rack, and provided with a pallet 20 for engaging with the teeth of said rack, the arms 22, 23, extending from the rod 15 parallel to the length of said rack and at ant angle with each other, a dog extending under the arm 22, and abutting against the arm 23, said dog resting at its free end against a surface parallel to the rod 15 ex tending at an angle to said surface and being pivoted to a part of the device which reciprocates in a direction approximately at right angles to said rack, the part of said dog which comes against the arm 22, being somewhat in advance of that part of said dog upon which its free end rests, substantially as and for the purpose described;

9. The'combin'a'tion of the rack 12, a pallet engaging with the teeth of said rack, a dog 24: adapted to lift and move said pallet backward, and allow said pallet to fall into the teeth of said rack, and a spring for restoring said pallet to place, substantially as and for purpose described.

10. The combination of the plate 3, the plate 11, secured to the plate 3, so as to permit the plate 3, to slide longitudinally with respect to the plate 11, and the plate 1, hinged to ,the plate 11, substantially as shown and described.

GEORGE P. DAVIS. Witnesses:

EVERARD F. HAYES, CARLTON :lrnone. 

